Mount
Pinatubo is just one of five major volcanoes in
the Philippines. Eruptions from these subduction-related
volcanoes will likely continue occurring. Each eruption
initiates a series of interactions among Earth's
spheres. The cumulative effect of continually adding
new geosphere materials to Earths surface
in this region will ultimately change the world.

8. Predict how Earth sphere interactions
in this region will change in the future.